Grinding mechanism, and clean equipment for liquid crystal panel

ABSTRACT

A grinding mechanism is provided including a support table configured for fixing a workpiece to be ground thereon, and a sliding assembly slidably provided on the support table and including a cleaning tool. The cleaning tool includes a scraper configured to face the support table and a scraper holder to which the scraper is provided.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to Chinese Patent Application No. 201820407037.X filed on Mar. 23, 2018, entitled “GRINDING MECHANISM, AND CLEAN EQUIPMENT FOR LIQUID CRYSTAL PANEL,” which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of display panel technology, and particularly, to a grinding mechanism, and a clean equipment for liquid crystal panel.

BACKGROUND

In the related art, in the manufacturing process of a liquid crystal panel, the liquid crystal panel is cleaned by means of, a grinding head which is covered with a grinding cloth containing calcium carbonate (CaCO3) and is provided at the circumferential direction thereof with a spray nozzle that is able to spray deionized water. During cleaning, the grinding cloth rotates and revolves on a surface of the liquid crystal panel, while the spray nozzle sprays deionized water toward the surface of the liquid crystal panel. By using the grinding cloth in conjunction with the spray nozzle, foreign matters are removed from the surface of the liquid crystal panel.

However, the grinding cloth has a poor ability to remove stubborn stains and dust, and the removal effect is not good. Moreover, the grinding cloth is fragile, requires frequent replacement, and is costly.

SUMMARY

According to various embodiments of the present disclosure, there is provided a grinding mechanism, comprising: a support table configured for fixing a workpiece to be ground thereon; and a sliding assembly slidably provided on the support table and comprising a cleaning tool, the cleaning tool comprising a scraper configured to face the support table and a scraper holder to which the scraper is provided.

In some embodiments, the scraper is movably provided to the scraper holder.

In some embodiments, the scraper is provided to the scraper holder through a slider configured to be swingable or movable by a pneumatic driver so as to control a telescopic degree of the scraper.

In some embodiments, the scraper holder has, at a bottom thereof, a receiving groove extended downwardly obliquely; and the scraper is provided within the receiving groove through the slider such that a blade of the scraper always extends out of the receiving groove and always moves away from the receiving groove.

In some embodiments, the support table has a support surface for supporting the workpiece to be ground thereon, and the scraper is inclined relative to a direction perpendicular to the support surface.

In some embodiments, the scraper has an inclination angle which is adjustable from about 5 degrees to about 30 degrees, relative to the direction perpendicular to the support surface.

In some embodiments, the sliding assembly further comprises a movable main beam and an electric driver, the electric driver is connected to the main beam for driving the main beam to move above the support table, and the cleaning tool is rotatably connected to the main beam for adjustment of the inclination angle of the scraper.

In some embodiments, the support table further comprises guide rails provided at both sides of the support surface, respectively, and the main beam is slidable along the guide rails.

In some embodiments, the scraper holder is provided with a plurality of spray jets formed in the scraper holder.

In some embodiments, a length direction of the blade of the scraper is perpendicular to a sliding direction of the sliding assembly.

According to various embodiments of the present disclosure, there is provided a clean equipment for a liquid crystal panel, the clean equipment comprising: the grinding mechanism of any of the above embodiments; a pneumatic driver connected to the support table, for adsorbing the workpiece to be ground onto the support table; and a water supplier including a heater for heating deionized water.

In some embodiments, the scraper is movably provided to the scraper holder through a slider configured to be swingable or movable by a pneumatic driver so as to control a telescopic degree of the scraper; and the pneumatic driver is connected to the slider, for driving swing or movement of the slider.

In some embodiments, the scraper holder is provided with a plurality of spray jets formed in the scraper holder, and the water supplier is communicated to the spray jets for supplying the spray jets with the deionized water.

In some embodiments, the scraper holder has, at a bottom thereof, a receiving groove extended downwardly obliquely; and the scraper is provided within the receiving groove through the slider such that a blade of the scraper is able to extend out of the receiving groove and move away from the receiving groove.

In some embodiments, the support table has a support surface for supporting the workpiece to be ground thereon, and the scraper is inclinedly provided relative to a direction perpendicular to the support surface.

In some embodiments, the scraper has an inclination angle which is adjustable from about 5 degrees to about 30 degrees, relative to the direction perpendicular to the support surface.

In some embodiments, the sliding assembly further comprises a movable main beam and an electric driver, the electric driver is connected to the main beam for driving the main beam to move above the support table, and the cleaning tool is rotatably connected to the main beam for adjustment of the inclination angle of the scraper.

In some embodiments, the support table further comprises guide rails provided at both sides of the support surface, respectively, and the main beam is slidable along the guide rails.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or additional aspects and advantages of the present disclosure will become apparent and readily understood from the description of the embodiments in conjunction with the accompanying drawings hereinafter.

FIG. 1 is a schematic view showing a structure of a grinding mechanism according to various embodiments of the present disclosure.

FIG. 2 and FIG. 3 are schematic views showing connections between a scraper holder and a scraper of the grinding mechanism according to various embodiments of the present disclosure.

FIG. 4 is a schematic view showing a structure of the scraper holder according to various embodiments of the present disclosure.

FIG. 5 is a schematic view showing a structure of spray jets on the scraper holder of the grinding mechanism according to various embodiments of the present disclosure.

FIG. 6 is a schematic view showing a connection between components of the clean equipment according to various embodiments of the present disclosure, in which components including pneumatic driver and water supplier are shown in block diagram.

DETAILED DESCRIPTION

These embodiments of the present disclosure will be described in detail below, and the examples of the embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals are always used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are illustrative, are intended to explain the present disclosure, and are not to be construed as limiting the present disclosure.

A grinding mechanism 100 according to various embodiments of the present disclosure will be described below with reference to FIG. 1 through FIG. 5.

According to various embodiments of the present disclosure, a grinding mechanism 100 comprises: a support table 10 and a sliding assembly 20. The support table 10 is configured for fixing a workpiece 200 to be ground thereon. The sliding assembly 20 is slidably provided on the support table 10, and the sliding assembly 20 comprises a cleaning tool 21. The cleaning tool 21 comprises a scraper 211 configured to face the support table 10 and a scraper holder 212 to which the scraper 211 is provided.

The grinding mechanism 100 is used to remove foreign matter on the workpiece to be ground, and grind the workpiece. When an operator uses the grinding mechanism 100, firstly the workpiece 200 to be ground needs to be fixed on the support table 10 and placed under the cleaning tool 21. Then, the cleaning tool 21 is adjusted to bring the scraper 211 into contact with the workpiece 200 to be ground and be pressed against the workpiece 200 to be ground with certain pressure. Finally the sliding assembly is allowed to move above the support table 10, so that the scraper 211 passes over a surface of the workpiece 200 to be ground, thereby the surface of the workpiece 200 to be ground is ground to remove foreign matter and dust on the surface of the workpiece 200 to be ground.

It should be noted that, the grinding mechanism 100 according to various embodiments of the present disclosure is mainly applicable to the cleaning and grinding of a display panel, particularly of a liquid crystal panel, and has an improved effect of removing foreign matter.

In the grinding mechanism 100 according to various embodiments of the present disclosure, the sliding assembly 20 is configured to be slidable relative to the support table 10, to cause the scraper 211 to scrape dirt on the surface of the workpiece 200 to be ground positioned on the support table 10. Thereby, during the sliding process of the sliding assembly, not only foreign matter on the surface of the workpiece 200 to be ground can be effectively scraped off, but also an improved effect of removing stain and dust is achieved due to a great force implemented by the scraper 211 on the surface of the workpiece 200 to be ground.

In one embodiment, the scraper 211 is movably provided to the scraper holder 212, that is, the scraper 211 is rotatably or slidably provided to the scraper holder 212.

The scraper 211 is adjusted to press against the workpiece 200 to be ground with certain pressure, at the same time, the scraper 211 is adaptively adjusted to always press against the workpiece 200 to be ground under the counteraction of the workpiece 200 to be ground, so that, when the sliding assembly is driven to move, the scraper slides relative to the workpiece 200 to be ground in a state where the scraper 211 is always pressed against the workpiece 200 to be ground, to clean the surface of the workpiece 200 to be ground.

Herein, it can be understood that a length direction of a blade of the scraper can be approximately perpendicular to a sliding direction of the sliding assembly. Specifically, the length direction of the blade of the scraper may approximately coincide with a width direction of the workpiece 200 to be ground, and the sliding direction of the sliding assembly may approximately coincide with the length direction of the workpiece 200 to be ground.

In some embodiments, the scraper 211 can slide upwardly or downwardly relative to the support table 10. Specifically, the scraper 211 may be provided to the scraper holder 212 in a manner that it is telescopic relative to the scraper holder 212 in an up-and-down direction. When the workpiece 200 to be ground needs to be ground, the scraper 211 is moved away from the support table 10, to form a large distance between the scraper 211 and the support table 10, so that the workpiece 200 to be ground can be conveniently placed on the support table 10 but under the scraper 211. After placing the work piece 200 to be ground, the scraper 211 is moved towards the support table 10 until the scraper 211 is in full contact with the workpiece 200 to be ground and presses against the workpiece 200 to be ground under certain pressure, thereby completing the placement of the workpiece 200 to be ground before grinding. For example, in the embodiments shown in FIG. 2, the scraper 211 is provided to the scraper holder 212 through a telescopic link 213, to achieve telescopic movement of the scraper 211 relative to the scraper holder 212 in the up-and-down direction.

In the specific embodiments illustrated in FIGS. 2 and 3, the scraper 211 is provided to the scraper holder 212 through a slider 22, and the slider 22 is configured to be swingable or movable by a pneumatic driver so as to control a telescopic degree of the scraper 211. In this way, a movable connection between the scraper 211 and the scraper holder 212 is achieved by means of the slider 22, which results in a gapless slip of the scraper 211 relative to the workpiece 200 to be ground. The sliding assembly including the slider 22 is simple in structure and is easy to implement, and the pneumatic driver is simple in structure, light in weight, convenient in installation and maintenance, and safe to use. Provision of the scraper 211 to the scraper holder 212 through the slider also can avoid a rigid contact between the scraper 211 and the workpiece 200 to be ground, and thus prevent the workpiece 200 to be ground from being scratched or crushed by the blade 211. Thus, the cleaning tool 21 has good wear resistance, owns a long service life and reduces the cost of use.

Moreover, the scraper holder 212 has, at a bottom thereof, a receiving groove 2121 extended downwardly obliquely. The scraper 211 is provided within the receiving groove 2121 through the slider 22. By means of the receiving groove 2121 extended downwardly obliquely, there causes a certain degree of inclination of the scraper 211 provided within the receiving groove 2121 relative to the surface of the support table 10. In this way, by slightly adjusting an inclination angle of the scraper 211, it can satisfy the grinding condition of the scraper 211 to the workpiece 200 to be ground, such that the blade of the scraper always extends out of the receiving groove 2121 and always moves away from the receiving groove 2121. As a result, the scraper 211 can extends out of the receiving groove 2121 and come into contact with the workpiece 200 to be ground placed on the support table 10.

If the workpiece 200 to be ground is a liquid crystal panel, since the scraper 211 is provided within the receiving groove through the slider 22, the use of the slider 22 can adjust the position of the scraper 211 more accurately, which can prevent the liquid crystal panel from being damaged by the scraper 211 when the scraper 211 is adjusted to come into contact with the liquid crystal panel.

In some embodiments, the support table 10 has a support surface 111 for supporting the workpiece 200 to be ground thereon, and the scraper 211 is inclinedly provided relative to a direction perpendicular to the support surface 111, which causes a gapless contact between the scraper 211 and the workpiece 200 to be ground, thereby obtaining a better grinding effect.

According to the present disclosure, the scraper 211 can be made of hard plastic material that has good wear resistance and owns long service life, thereby enhancing the reliability of the grinding mechanism 100 and reducing the production cost and the cost of use of the grinding mechanism 100.

In order to further enhance the cleaning/grinding effect, the inclination angle of the scraper 211 is adjustable, that is, the scraper 211 can be swingably provided on the scraper holder 212. After completing the placement of the workpiece 200 to be ground and the adjustment of relative position between the scraper 211 and the workpiece 200 to be ground in the up-and-down direction, since the scraper 211 can still be swingable relative to the scraper holder 212, an angle between the cleaning tool and the workpiece 200 to be ground can be adjusted to suit different situations so that there is a gapless contact between the scraper and the workpiece 200 to be ground.

In some embodiments, the inclination angle of the scraper 211 (i.e., the angle between the scraper 211 and the workpiece 200 to be ground) is a, in which 30°≥α≥5°. According to the experiments and calculation implemented by the inventor, if the angle α between the cleaning tool and the workpiece 200 to be ground is within the above range, the contact gap problem occurred between the scraper 211 and the workpiece 200 to be ground can be solved, and a good grinding effect can be achieved.

If the workpiece 200 to be ground is a liquid crystal panel, since the angle between the scraper 211 and the liquid crystal panel is adjustable, when the grinding mechanism 100 is used to grind the liquid crystal panel, no great force is needed to be exerted on the scraper 211 in order to solve the contact gap problem between the scraper 211 and the liquid crystal panel, as a result, the liquid crystal panel can be prevented from being damaged by the scraper 211.

According to various embodiments of the present disclosure, the sliding assembly further comprises a movable main beam 23 and an electric driver 24, the electric driver 24 is connected to the main beam 23 for driving the main beam 23 to move above the support table 10, and the cleaning tool 21 is connected to the main beam 23. The electric driver 24 drives the main beam 23 to move and thus slides the cleaning tool 21 connected to the main beam 23 on the support table 10, which achieve a smooth movement of the cleaning tool 21. In addition, the cleaning tool 21 is rotatably connected to the main beam 23 for adjustment of the inclination angle of the scraper 211.

In the specific embodiments of FIG. 1, the support table 10 further comprises guide rails 12 provided at both sides of the support surface, respectively, and the main beam 23 is slidable along the guide rails 12. The engagement between the main beam 23 and the guide rails 12 achieves a smooth movement of the main beam 23 above the support table 10, which prevents the main beam 23 from vibrating during the movement, ensuring accuracy of the grinding.

In some specific examples, the cleaning tool 21 is connected to the main beam 23 through a connection rod. The inclination angle of the cleaning tool 21 can be adjusted by adjusting a rotation angle of the connection rod.

In some specific examples, the scraper 211 can also be detachably provided to the scraper holder 212. In this way, it is easy to clean, repair and replace the scraper 211.

In some embodiments, as shown in FIG. 5, the scraper holder 212 is provided with spray jets 2123, and the number of the spray jets 2123 is plural and the spray jets 2123 are formed in the scraper holder 212, and a spray nozzle is provided at an end of each spray jet 2123. In this way, when grinding the workpiece 200 to be ground, the spray nozzles at the spray jets 2123 can spray deionized water, which can wash off the stains on the grinding surface and improve the grinding effect.

In some specific examples, as shown in FIG. 5, there are seven spray jets 2123 provided at interval in the scraper holder 212 along a length direction of. Moreover, the seven spray jets 2123 can be provided at equal intervals, so that the water spray on the surface to be ground is uniform and thus a good washing-off effect is achieved. Of course, the number of the spray jets 2123 and the manner of arrangement of the spray jets 2123 on the scraper holder 212 are not limited to this.

One end of the spray jet 2123 is connected to a main water path, and the other end of the spray jet 2123 is provided with the spray nozzle. When the grinding operation is performed, water is supplied from the main water path to the spray jet 2123, and is sprayed from the spray nozzle towards the surface to be ground, thereby facilitating rapid washing-off of stains on the surface and improving the grinding effect. In some embodiments, the sprayed water can be deionized water, so that a better grinding effect can be achieved.

According to embodiments of the present disclosure, there is also provided a clean equipment for liquid crystal panel. The clean equipment comprises: the grinding mechanism 100 according to any one of abovementioned embodiments, a pneumatic driver 300 and a water supplier 400, as shown in FIG. 6.

In some specific examples, the workpiece 200 to be ground can be a liquid crystal panel. The grinding mechanism 100 has a good effect on removing the foreign matter on the liquid crystal panel, so that the clean equipment for liquid crystal panel has the same advantages as the grinding mechanism according to the abovementioned embodiments, and will not be described herein.

The pneumatic driver 300 is connected to the support table 10, for adsorbing the liquid crystal panel onto the support table 10. In this way, the liquid crystal panel can be fixed on the support table 10 to prevent the liquid crystal panel from moving along with the cleaning tool 21 during the grinding process, thereby ensuring the grinding effect. At the same time, the pneumatic driver 300 can also be connected to the slider 22 to drive the slider 22 to move or swing.

The water supplier 400 includes a heater 410 for heating water. The water supplier is connected to the spray jets 2123, for supplying the spray jets 2123 with water, and the heater 410 can be used to heat the water supplied to the spray jets 2123. When the heater for water is in operation, the spray nozzle can spray hot water to the grinding surface of the liquid crystal panel, so that the clean equipment for liquid crystal panel can be used to wash off stubborn stains on the liquid crystal panel.

In some specific examples, the clean equipment for liquid crystal panel may further comprise a temperature sensor 500 for measuring the temperature of the water heated by the heater. The clean equipment for liquid crystal panel may also control whether the heater is working or not in accordance with data feedback from the temperature sensor, to stabilize the water at preset temperature, thereby preventing the liquid crystal panel from being damaged due to excessive water temperature or preventing the water temperature from being too low to achieve a good cleaning effect.

By providing the grinding mechanism according to the abovementioned embodiments, the clean equipment for liquid crystal panel according to the present disclosure has the corresponding advantage as the grinding mechanism according to the abovementioned embodiments, and enhances the stain washing-off ability of the clean equipment for the liquid crystal panel, and has a simple structure and is easy to operate.

In the description of the present disclosure, it should be understood that the terms “length”, “width”, “thickness”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, etc., indicating orientational or positional relationship, are based on the orientational or positional relationship shown in the accompanying drawings, and are merely intended for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or component referred to have a specific orientation, or to be constructed or operated in a specific orientation, and are therefore not to be construed as limiting the present disclosure.

Moreover, the terms “first” and “second” are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features referred to. Thus, these features defining “first” and “second” may include one or more of the features either explicitly or implicitly. In the description of the present disclosure, “a/the plurality of” indicates at least two, such as two, three, etc., unless being specifically defined otherwise.

In the present disclosure, unless explicitly stated or defined otherwise, the terms “mount”, “connect to”, “connect with”, “fix”, and the like, should be understood broadly. For example, it can be a fixed connection or a detachable connection or integrated; it can also be a mechanical connection or an electric connection or communication with each other; it can also be a direct connection, or an indirect connection through an intermediate medium; it can also be an internal communication between two elements or an interaction between two elements. For those skilled in the art, specific meanings of the above terms recited in the present disclosure can be understood on a case-by-case basis.

In the description of the present specification, the expression “one embodiment”, “some embodiments”, “for example”, “a specific example”, or “some examples” and the like indicates specific feature(s), structure(s), material(s), or characteristic(s) described in the embodiment(s) or the example(s) is/are included in at least one embodiment or example of the present disclosure. In the present description, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the specific feature(s), structure(s), material(s), or characteristic(s) described in the embodiment(s) or the example(s) described may be combined in a suitable manner in one or more embodiments or examples. In addition, various embodiments or examples described in the present specification can be composed and combined for those skilled in the art.

While the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limiting the scope of the present disclosure. Changes, modifications, substitutions and variations can be made to the above embodiments within the scope of the present disclosure, for those skilled in the art. 

What is claimed is:
 1. A grinding mechanism, comprising: a support table configured for fixing a workpiece to be ground thereon; and a sliding assembly slidably provided on the support table and comprising a cleaning tool, the cleaning tool comprising a scraper configured to face the support table and a scraper holder to which the scraper is provided.
 2. The grinding mechanism of claim 1, wherein the scraper is movably provided to the scraper holder.
 3. The grinding mechanism of claim 2, wherein the scraper is provided to the scraper holder through a slider configured to be swingable or movable by a pneumatic driver so as to control a telescopic degree of the scraper.
 4. The grinding mechanism of claim 3, wherein the scraper holder has, at a bottom thereof, a receiving groove extended downwardly obliquely; and the scraper is provided within the receiving groove through the slider such that a blade of the scraper always extends out of the receiving groove and always moves away from the receiving groove.
 5. The grinding mechanism of claim 2, wherein the support table has a support surface for supporting the workpiece to be ground thereon, and the scraper is inclined relative to a direction perpendicular to the support surface.
 6. The grinding mechanism of claim 5, wherein the scraper has an inclination angle which is adjustable from about 5 degrees to about 30 degrees, relative to the direction perpendicular to the support surface.
 7. The grinding mechanism of claim 6, wherein the sliding assembly further comprises a movable main beam and an electric driver, the electric driver is connected to the main beam for driving the main beam to move above the support table, and the cleaning tool is rotatably connected to the main beam for adjustment of the inclination angle of the scraper.
 8. The grinding mechanism of claim 7, wherein the support table further comprises guide rails provided at both sides of the support surface, respectively, and the main beam is slidable along the guide rails.
 9. The grinding mechanism of claim 1, wherein the scraper holder is provided with a plurality of spray jets formed in the scraper holder.
 10. The grinding mechanism of claim 1, wherein a length direction of a blade of the scraper is perpendicular to a sliding direction of the sliding assembly.
 11. A clean equipment for a liquid crystal panel, the clean equipment comprising: the grinding mechanism of claim 1; a pneumatic driver connected to the support table, for adsorbing the workpiece to be ground onto the support table; and a water supplier including a heater for heating deionized water.
 12. The clean equipment of claim 11, wherein: the scraper is movably provided to the scraper holder through a slider configured to be swingable or movable by a pneumatic driver so as to control a telescopic degree of the scraper; and the pneumatic driver is connected to the slider, for driving swing or movement of the slider.
 13. The clean equipment of claim 12, wherein the scraper holder has, at a bottom thereof, a receiving groove extended downwardly obliquely; and the scraper is provided within the receiving groove through the slider such that a blade of the scraper is able to extend out of the receiving groove and move away from the receiving groove.
 14. The clean equipment of claim 11, wherein the scraper holder is provided with a plurality of spray jets formed in the scraper holder, and the water supplier is communicated to the spray jets for supplying the spray jets with the deionized water.
 15. The clean equipment of claim 11, wherein the support table has a support surface for supporting the workpiece to be ground thereon, and the scraper is inclinedly provided relative to a direction perpendicular to the support surface.
 16. The clean equipment of claim 15, wherein the scraper has an inclination angle which is adjustable from about 5 degrees to about 30 degrees, relative to the direction perpendicular to the support surface.
 17. The clean equipment of claim 15, wherein the sliding assembly further comprises a movable main beam and an electric driver, the electric driver is connected to the main beam for driving the main beam to move above the support table, and the cleaning tool is rotatably connected to the main beam for adjustment of the inclination angle of the scraper.
 18. The clean equipment of claim 17, wherein the support table further comprises guide rails provided at both sides of the support surface, respectively, and the main beam is slidable along the guide rails. 